datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,05 0:30:00,29 , 1.03606,4.084867,2.585064,0.895755
sgpcmbeC1.c1,2002,05 1:30:00,25 ,0.997467,4.037583,2.426847,0.847575
sgpcmbeC1.c1,2002,05 2:30:00,25 ,0.990016, 4.07316,2.439515,0.829644
sgpcmbeC1.c1,2002,05 3:30:00,24 ,0.983174, 4.09235,2.507424, 0.83555
sgpcmbeC1.c1,2002,05 4:30:00,24 , 0.89716,4.140011,2.551403,0.841476
sgpcmbeC1.c1,2002,05 5:30:00,24 ,0.865402,4.040344,2.502612,0.780315
sgpcmbeC1.c1,2002,05 6:30:00,25 ,0.919555,3.980349, 2.51579, 0.77527
sgpcmbeC1.c1,2002,05 7:30:00,26 , 0.93487,3.936465, 2.62012,0.832901
sgpcmbeC1.c1,2002,05 8:30:00,27 ,0.923702,  3.7356,2.584585,0.798863
sgpcmbeC1.c1,2002,05 9:30:00,30 ,0.858127,3.802072,2.533916,0.838546
sgpcmbeC1.c1,2002,0510:30:00,31 , 0.91256,3.903929,2.588067,0.876916
sgpcmbeC1.c1,2002,0511:30:00,31 ,0.937979,4.034089,2.618214,0.896726
sgpcmbeC1.c1,2002,0512:30:00,31 ,0.958273,4.166752,2.706064, 0.97303
sgpcmbeC1.c1,2002,0513:30:00,31 ,0.981953,4.593424,2.742102,1.028481
sgpcmbeC1.c1,2002,0514:30:00,30 ,0.992638,4.515625,2.652504,0.971049
sgpcmbeC1.c1,2002,0515:30:00,30 ,1.084931,4.468794,2.664066,0.960603
sgpcmbeC1.c1,2002,0516:30:00,31 ,1.145982,4.364051,2.685511,0.908939
sgpcmbeC1.c1,2002,0517:30:00,31 ,1.097225,4.424522,2.672647,0.887987
sgpcmbeC1.c1,2002,0518:30:00,31 ,1.126398,4.457511,2.652803,0.875563
sgpcmbeC1.c1,2002,0519:30:00,31 ,1.081186,4.519054,2.656822,0.864463
sgpcmbeC1.c1,2002,0520:30:00,30 ,0.980085,4.361564,2.568033,0.855566
sgpcmbeC1.c1,2002,0521:30:00,30 ,0.962901,4.203206,2.527059,0.877193
sgpcmbeC1.c1,2002,0522:30:00,30 ,1.005436,4.012761,2.535747,0.894644
sgpcmbeC1.c1,2002,0523:30:00,30 ,1.036255,4.269258,2.557377,0.921745